Papers by Keyword: Abrasion Rate

Abstract: The form factor of abrasion particles is one of the most important Influencing factors of abrasion resistance of concrete. In order to evaluate the serves life of concrete, a relationship about the form factor of abrasion particles and the wear degree of abrasion resistance of concrete should be established. In this paper, wear process of basalt on concrete was studied under the flow velocity form 1.7m/s to2.4m/s by a improved under water method test equipment. Meanwhile, an image acquisition method was used to get the form factor of basalt to measure the influence of form factor of basalt on wear degree of concrete. The result shows: the abrasion rate of concrete is higher when the flow velocity is faster and the particle form is sharper, and there is an exponential function relationship between particle forms and abrasion rate.

Abstract: The most typical example of hard and brittle material is advanced ceramics, for its ultra-precision machining difficulty and wide applications, now it becomes a focus of attention. Semi-fixed abrasive plate (SFAP) is newly developed tool for machining advanced ceramics; As a result of SFAP abrasion, a gradual change takes place in the SFAP topography to influence on machining results and productivity. The paper shows experiment procedures to evaluate SFAP abrasion rate and workpiece material removal. The results of experiments are discussed and analyzed, it indicates that wet status of SFAP have great influences on the removal rate and SFAP abrasion. Compared with dry status of SFAP, wet status of SFAP can achieve higher processing efficiency.